feat(untested): add handles base

src/application/applicationstate.c

@@ -90,9 +90,6 @@ static void canvas_onclick(GtkGestureClick* gesture, int n_press, double x,
     int widget_w = gtk_widget_get_width(widget);
     int widget_h = gtk_widget_get_height(widget);
 
-    int canvas_w = state->canvas->width;
-    int canvas_h = state->canvas->height;
-
     V2 normalized_coords =
         (V2){(2 * (x / widget_w)) - 1, 1 - (2 * (y / widget_h))};
 
@@ -157,6 +154,25 @@ begin_click_dispatch:
         }
 
         vektor_polygon_add_point(state->selectedShape->primitive.polygon, pos);
+        vektor_shapes_update_bbox(state->shapeBuffer);
+    } else if (state->selectedTool == VektorCircleTool) {
+
+        VektorCircle* circle = vektor_circle_new();
+        VektorPrimitive circlePrimitive =
+            (VektorPrimitive){.kind = VEKTOR_CIRCLE, .circle = *circle};
+        VektorStyle style = (VektorStyle){.stroke_color = state->currentColor,
+                                          .stroke_width = 0.01};
+        vektor_shapebuffer_add_shape(
+            state->shapeBuffer, vektor_shape_new(circlePrimitive, style, 0));
+
+        state->selectedShape =
+            &(state->shapeBuffer->shapes[state->shapeBuffer->count - 1]);
+
+        vektor_circle_free(circle);
+
+        vektor_circle_set_center(&state->selectedShape->primitive.circle, pos);
+        vektor_circle_set_radius(&state->selectedShape->primitive.circle, 0.1f);
+
         vektor_shapes_update_bbox(state->shapeBuffer);
     } else if (state->selectedTool == VektorRectangleTool) {
 
@@ -185,7 +201,6 @@ begin_click_dispatch:
                 state->shapeBuffer->shapes[i].primitive);
             if (vektor_bbox_isinside(bbox, pos)) {
                 state->selectedShape = &(state->shapeBuffer->shapes[i]);
-                g_print("%d", state->selectedShape == NULL);
                 return;
             }
         }
@@ -194,6 +209,36 @@ begin_click_dispatch:
     }
 }
 
+void vektor_appstate_canvas_drag_begin(GtkGestureDrag* gesture, gdouble x,
+                                       gdouble y, gpointer user_data) {
+    GtkWidget* widget =
+        gtk_event_controller_get_widget(GTK_EVENT_CONTROLLER(gesture));
+
+    int widget_w = gtk_widget_get_width(widget);
+    int widget_h = gtk_widget_get_height(widget);
+
+    V2 normalized_coords =
+        (V2){(2 * (x / widget_w)) - 1, 1 - (2 * (y / widget_h))};
+
+}
+
+void vektor_appstate_canvas_drag_update(GtkGestureDrag* gesture,
+                                        gdouble x, gdouble y,
+                                        gpointer user_data) {
+    gdouble start_x, start_y;
+    gtk_gesture_drag_get_start_point(gesture, &start_x, &start_y);
+
+    GtkWidget* widget =
+        gtk_event_controller_get_widget(GTK_EVENT_CONTROLLER(gesture));
+
+    int widget_w = gtk_widget_get_width(widget);
+    int widget_h = gtk_widget_get_height(widget);
+
+    V2 norm =
+        (V2){(2 * ( (x+start_x) / widget_w)) - 1, 1 - (2 * ( (y+start_y) / widget_h))};
+    
+}
+
 void vektor_appstate_new(VektorWidgetState* wstate, VektorAppState* stateOut) {
     button_tool_set_data* data_linetool = malloc(sizeof(button_tool_set_data));
     data_linetool->state = stateOut;
@@ -217,22 +262,21 @@ void vektor_appstate_new(VektorWidgetState* wstate, VektorAppState* stateOut) {
     data_selecttool->state = stateOut;
     data_selecttool->tool = VektorSelectionTool;
 
+    button_tool_set_data* data_circletool =
+        malloc(sizeof(button_tool_set_data));
+    data_circletool->state = stateOut;
+    data_circletool->tool = VektorCircleTool;
+    data_circletool->revealer = wstate->workspaceRevealerShapes;
+
     // populate appstate
     stateOut->startupTime = g_get_monotonic_time();
-
     stateOut->shapeBuffer = malloc(sizeof(VektorShapeBuffer));
     *stateOut->shapeBuffer = (VektorShapeBuffer){0};
-
-    VektorCircle circ = (VektorCircle){.center = (V2){0, 0}, .radius = 0.3};
-    VektorShape shp = vektor_shape_new(
-        (VektorPrimitive){.kind = VEKTOR_CIRCLE, .circle = circ},
-        (VektorStyle){.stroke_color = stateOut->currentColor, 0.01}, 0);
-    vektor_shapebuffer_add_shape(stateOut->shapeBuffer, shp);
-
     stateOut->canvas = malloc(sizeof(VektorCanvas));
     stateOut->widgetState = wstate;
     stateOut->currentColor = vektor_color_solid(0, 0, 0);
     stateOut->selectedShape = NULL;
+
     VektorCanvasRenderInfo* renderInfo = malloc(sizeof(VektorCanvasRenderInfo));
     renderInfo->zoom = 1;
     renderInfo->panX = 0;
@@ -245,13 +289,14 @@ void vektor_appstate_new(VektorWidgetState* wstate, VektorAppState* stateOut) {
     renderInfo->canvasMat = m33_identity();
     vektor_canvas_init(wstate, stateOut->canvas, renderInfo);
     stateOut->renderInfo = renderInfo;
+
     // link all the buttons
     g_signal_connect(G_OBJECT(wstate->workspaceButtonLineTool), "clicked",
                      G_CALLBACK(appstate_set_tool), data_linetool);
     g_signal_connect(G_OBJECT(wstate->workspaceButtonRectTool), "clicked",
                      G_CALLBACK(appstate_set_tool), data_rectangletool);
     g_signal_connect(G_OBJECT(wstate->workspaceButtonCircleTool), "clicked",
-                     G_CALLBACK(appstate_set_tool), data_linetool);
+                     G_CALLBACK(appstate_set_tool), data_circletool);
     g_signal_connect(G_OBJECT(wstate->workspaceButtonPolygonTool), "clicked",
                      G_CALLBACK(appstate_set_tool), data_polygontool);
     g_signal_connect(G_OBJECT(wstate->workspaceButtonSelectionTool), "clicked",
@@ -283,4 +328,14 @@ void vektor_appstate_new(VektorWidgetState* wstate, VektorAppState* stateOut) {
                      G_CALLBACK(canvas_onclick), stateOut);
     gtk_widget_add_controller(GTK_WIDGET(wstate->workspaceCanvas),
                               GTK_EVENT_CONTROLLER(canvasClickGesture));
+
+    // Add drag gesture to canvas
+    GtkGesture* canvasDragGesture = gtk_gesture_drag_new();
+    g_signal_connect(G_OBJECT(canvasDragGesture), "drag-update",
+                     G_CALLBACK(vektor_appstate_canvas_drag_update), stateOut);
+    g_signal_connect(G_OBJECT(canvasDragGesture), "drag-begin",
+                     G_CALLBACK(vektor_appstate_canvas_drag_begin), stateOut);
+
+    gtk_widget_add_controller(GTK_WIDGET(wstate->workspaceCanvas),
+                              GTK_EVENT_CONTROLLER(canvasDragGesture));
 }

src/application/applicationstate.h

@@ -10,7 +10,8 @@ typedef enum VektorAppTool {
     VektorSelectionTool,
     VektorLineTool,
     VektorPolygonTool,
-    VektorRectangleTool
+    VektorRectangleTool,
+    VektorCircleTool
 } VektorAppTool;
 
 typedef struct VektorAppState {

src/core/primitives.c

@@ -1,8 +1,12 @@
 #include "primitives.h"
+#include "glib.h"
+#include "src/core/vector.h"
 #include <assert.h>
 #include <math.h>
 #include <stddef.h>
 
+// ------ PER-PRIMITIVE METHODS ------
+
 VektorPolyline* vektor_polyline_new(void) {
     VektorPolyline* pl = malloc(sizeof(VektorPolyline));
     pl->count = 0;
@@ -74,6 +78,10 @@ void vektor_circle_set_radius(VektorCircle* circle, double radius) {
     circle->radius = radius;
 }
 
+void vektor_circle_free(VektorCircle* circle) {
+    free(circle);
+}
+
 VektorRectangle* vektor_rectangle_new(void) {
     VektorRectangle* rct = malloc(sizeof(VektorRectangle));
     rct->start = (V2){.x = 0, .y = 0};
@@ -90,32 +98,24 @@ void vektor_rectangle_set_start(VektorRectangle* rct, V2 point) {
 
 void vektor_rectangle_free(VektorRectangle* rct) { free(rct); }
 
-void vektor_shapebuffer_add_shape(VektorShapeBuffer* buffer,
-                                  VektorShape shape) {
-    if (buffer->count >= buffer->capacity) {
-        buffer->capacity = buffer->capacity ? buffer->capacity * 2 : 4;
-        buffer->shapes =
-            realloc(buffer->shapes, sizeof(VektorShape) * buffer->capacity);
-    }
-    buffer->shapes[buffer->count++] = shape;
-
-    if (buffer->count <= buffer->capacity / 4) {
-        buffer->capacity /= 2;
-        buffer->shapes =
-            realloc(buffer->shapes, sizeof(VektorShape) * buffer->capacity);
-    }
-}
-
 VektorBBox vektor_polyline_get_bbox(VektorPrimitive prim) {
-    float min_x, max_x, min_y, max_y;
-    for (size_t i = 0; i < prim.polyline->count; i++) {
-        V2 p = prim.polyline->points[i];
+    V2 first = prim.polyline->points[0];
+
+    float min_x = first.x;
+    float max_x = first.x;
+    float min_y = first.y;
+    float max_y = first.y;
+
+    for (size_t i = 1; i < prim.polygon->count; i++) {
+        V2 p = prim.polygon->points[i];
+
         min_x = fminf(min_x, p.x);
         min_y = fminf(min_y, p.y);
 
-        max_x = fminf(max_x, p.x);
-        max_y = fminf(max_y, p.y);
+        max_x = fmaxf(max_x, p.x);
+        max_y = fmaxf(max_y, p.y);
     }
+
     return (VektorBBox){(V2){min_x, min_y}, (V2){max_x, max_y}};
 }
 
@@ -144,6 +144,13 @@ VektorBBox vektor_rectangle_get_bbox(VektorPrimitive prim) {
     return (VektorBBox){prim.rectangle.start, prim.rectangle.end};
 }
 
+VektorBBox vektor_circle_get_bbox(VektorPrimitive prim) {
+    return (VektorBBox){
+        vec2_sub(prim.circle.center, vec2_fromfloat(prim.circle.radius)), 
+        vec2_add(prim.circle.center, vec2_fromfloat(prim.circle.radius))
+    };
+}
+
 VektorBBox vektor_primitive_get_bbox(VektorPrimitive prim) {
     switch (prim.kind) {
     case VEKTOR_POLYLINE:
@@ -158,17 +165,177 @@ VektorBBox vektor_primitive_get_bbox(VektorPrimitive prim) {
         return vektor_rectangle_get_bbox(prim);
         break;
 
+    case VEKTOR_CIRCLE:
+        return vektor_circle_get_bbox(prim);
+        break;
+
     default:
         // TODO: fill in all primitives
         break;
     }
 }
 
+// ------ PRIMITIVE HANDLES GENERATION ------
+
+/* [n]: polyline vertices */
+void vektor_polyline_create_handles(VektorPolyline* polyline, V2** handleArr, size_t* count) {
+    *count = 0;
+    *handleArr = NULL;
+}
+
+/* [n]: polygon vertices */
+void vektor_polygon_create_handles(VektorPolygon* polygon, V2** handleArr, size_t* count) {
+    *count = 0;
+    *handleArr = NULL;
+}
+
+/* [0]: center; [1]: radius */
+void vektor_circle_create_handles(VektorCircle* circle, V2** handleArr, size_t* count) {
+    *count = 2;
+    *handleArr = (V2*)malloc(sizeof(V2)*(*count));
+    (*handleArr)[0] = circle->center;
+    (*handleArr)[1] = (V2){circle->radius + circle->center.x, circle->center.y};
+}
+
+/* [0]: center; [1-4]: corners (l2r, t2b); */
+void vektor_rectangle_create_handles(VektorRectangle* rectangle, V2** handleArr, size_t* count) {
+    *count = 5;
+    free(*handleArr);
+    *handleArr = (V2*)malloc(sizeof(V2)*(*count));
+    
+    V2 halfdist = vec2_scale(vec2_sub(rectangle->end, rectangle->start), 0.5f);
+    V2 center = vec2_add(rectangle->start, halfdist);
+
+    (*handleArr)[0] = center;
+    (*handleArr)[1] = vec2_add( center, vec2_mul(halfdist, (V2){-1.0f, 1.0f}) );
+    (*handleArr)[2] = vec2_add( center, halfdist);
+    (*handleArr)[3] = vec2_add( center, vec2_mul(halfdist, (V2){-1.0f, -1.0f}) );
+    (*handleArr)[4] = vec2_add( center, vec2_mul(halfdist, (V2){1.0f, -1.0f}) );
+}
+
+void vektor_shape_create_handles(VektorShape* shape) {
+    switch(shape->primitive.kind) {
+        case VEKTOR_POLYLINE:
+            vektor_polyline_create_handles(shape->primitive.polyline, &shape->handles, &shape->handleCount);
+            break;
+        case VEKTOR_POLYGON:
+            vektor_polygon_create_handles(shape->primitive.polygon, &shape->handles, &shape->handleCount);
+            break;
+        case VEKTOR_CIRCLE:
+            vektor_circle_create_handles(&shape->primitive.circle, &shape->handles, &shape->handleCount);
+            break;
+        case VEKTOR_RECTANGLE:
+            vektor_rectangle_create_handles(&shape->primitive.rectangle, &shape->handles, &shape->handleCount);
+            break;
+    }
+}
+
+// ------ PRIMITIVE HANDLES UPDATING ------
+
+void vektor_polyline_handles_updated(VektorPolyline* polyline, V2** handles, size_t* count) {
+    if(*count != polyline->count) {
+        g_warning("handle count & point count mismatch in polyline");
+        return;
+    }
+    for(size_t i = 0; i < *count; i++) {
+        polyline->points[i] = (*handles)[i];
+    }
+}
+
+void vektor_polygon_handles_updated(VektorPolygon* polygon, V2** handles, size_t* count) {
+    if(*count != polygon->count) {
+        g_warning("handle count & point count mismatch in polygon");
+        return;
+    }
+    for(size_t i = 0; i < *count; i++) {
+        polygon->points[i] = (*handles)[i];
+    }
+}
+
+void vektor_circle_handles_updated(VektorCircle* circle, V2** handles, size_t* count) {
+    if(*count != 2) {
+        g_warning("unexpected circle handle count (%zu)", *count);
+        return;
+    }
+    circle->center = (*handles)[0];
+    circle->radius = vec2_length(vec2_sub((*handles)[0], (*handles)[1]));
+}
+
+void vektor_rectangle_handles_updated(VektorRectangle* rectangle, V2** handles, size_t* count) {
+    if(*count != 5) {
+        g_warning("unexpected rectangle handle count (%zu)", *count);
+        return;
+    }
+    
+    // get rectangle center
+    V2 halfdist = vec2_scale(vec2_sub(rectangle->end, rectangle->start), 0.5f);
+    V2 rectcenter = vec2_add(rectangle->start, halfdist);
+
+    // center according to handles
+    V2 center = (*handles)[0];
+
+    if(vec2_equals(center, rectcenter)) { // corner handles were changed
+        V2 p1 = (*handles)[1];
+        V2 p2 = (*handles)[2];
+        V2 p3 = (*handles)[3];
+        V2 p4 = (*handles)[4];
+
+        float min_x = fminf(p1.x, fminf(p2.x, fminf(p3.x, p4.x)));
+        float min_y = fminf(p1.y, fminf(p2.y, fminf(p3.y, p4.y)));
+        float max_x = fmaxf(p1.x, fmaxf(p2.x, fmaxf(p3.x, p4.x)));
+        float max_y = fmaxf(p1.y, fmaxf(p2.y, fmaxf(p3.y, p4.y)));
+
+        V2 min = (V2){min_x, min_y};
+        V2 max = (V2){max_x, max_y};
+
+        VektorRectangle propertRect = (VektorRectangle){min,max};
+        // overwrite handles array (create_handles() frees the passed one)
+        vektor_rectangle_create_handles(&propertRect, handles, count);
+
+    } else { // corner was dragged
+        V2 translation = vec2_sub(center, rectcenter);
+        V2 newmax = vec2_add((*handles)[2], translation);
+        V2 newmin = vec2_add((*handles)[3], translation);
+
+        VektorRectangle propertRect = (VektorRectangle){newmin,newmax};
+        vektor_rectangle_create_handles(&propertRect, handles, count);
+    }
+    
+}
+
+void vektor_shape_handles_updated(VektorShape* shape) {
+    switch(shape->primitive.kind) {
+        case VEKTOR_POLYLINE:
+            vektor_polyline_handles_updated(shape->primitive.polyline, &shape->handles, &shape->handleCount);
+            break;
+        case VEKTOR_POLYGON:
+            vektor_polygon_handles_updated(shape->primitive.polygon, &shape->handles, &shape->handleCount);
+            break;
+        case VEKTOR_CIRCLE:
+            vektor_circle_handles_updated(&shape->primitive.circle, &shape->handles, &shape->handleCount);
+            break;
+        case VEKTOR_RECTANGLE:
+            vektor_rectangle_handles_updated(&shape->primitive.rectangle, &shape->handles, &shape->handleCount);
+            break;
+    }
+}
+
+// ------ BBOX METHODS ------
+
 bool vektor_bbox_isinside(VektorBBox bbox, V2 point) {
     return point.x >= bbox.min.x && point.y >= bbox.min.y &&
            point.x <= bbox.max.x && point.y <= bbox.max.y;
 }
 
+VektorBBox vektor_bbox_fromcenter(V2 center, float dist) {
+    V2 v2dist = vec2_fromfloat(dist);
+    V2 min = vec2_sub(center, v2dist);
+    V2 max = vec2_add(center, v2dist);
+    return (VektorBBox){min,max};
+}
+
+// ------ SHAPE METHODS ------
+
 VektorShape vektor_shape_new(VektorPrimitive prim, VektorStyle style,
                              int z_index) {
     return (VektorShape){.primitive = prim,
@@ -183,3 +350,19 @@ void vektor_shapes_update_bbox(VektorShapeBuffer* buffer) {
             vektor_primitive_get_bbox(buffer->shapes[i].primitive);
     }
 }
+
+void vektor_shapebuffer_add_shape(VektorShapeBuffer* buffer,
+                                  VektorShape shape) {
+    if (buffer->count >= buffer->capacity) {
+        buffer->capacity = buffer->capacity ? buffer->capacity * 2 : 4;
+        buffer->shapes =
+            realloc(buffer->shapes, sizeof(VektorShape) * buffer->capacity);
+    }
+    buffer->shapes[buffer->count++] = shape;
+
+    if (buffer->count <= buffer->capacity / 4) {
+        buffer->capacity /= 2;
+        buffer->shapes =
+            realloc(buffer->shapes, sizeof(VektorShape) * buffer->capacity);
+    }
+}

src/core/primitives.h

@@ -45,23 +45,6 @@ typedef struct {
     };
 } VektorPrimitive;
 
-VektorPolyline* vektor_polyline_new(void);
-void vektor_polyline_add_point(VektorPolyline* pl, V2 point);
-void vektor_polyline_free(VektorPolyline* pl);
-
-VektorPolygon* vektor_polygon_new(void);
-void vektor_polygon_add_point(VektorPolygon* pl, V2 point);
-void vektor_polygon_free(VektorPolygon* pl);
-
-VektorCircle* vektor_circle_new(void);
-void vektor_circle_set_center(VektorCircle* circle, V2 point);
-void vektor_circle_set_radius(VektorCircle* circle, double radius);
-
-VektorRectangle* vektor_rectangle_new(void);
-void vektor_rectangle_set_end(VektorRectangle* rct, V2 point);
-void vektor_rectangle_set_start(VektorRectangle* rct, V2 point);
-void vektor_rectangle_free(VektorRectangle* rct);
-
 typedef struct {
     VektorColor stroke_color;
     float stroke_width;
@@ -77,8 +60,31 @@ typedef struct {
     int z_index;
     VektorBBox bbox;
     VektorPrimitive primitive;
+
+    V2* handles;
+    size_t handleCount;
 } VektorShape;
 
+VektorPolyline* vektor_polyline_new(void);
+void vektor_polyline_add_point(VektorPolyline* pl, V2 point);
+void vektor_polyline_free(VektorPolyline* pl);
+
+VektorPolygon* vektor_polygon_new(void);
+void vektor_polygon_add_point(VektorPolygon* pl, V2 point);
+void vektor_polygon_free(VektorPolygon* pl);
+
+VektorCircle* vektor_circle_new(void);
+void vektor_circle_set_center(VektorCircle* circle, V2 point);
+void vektor_circle_set_radius(VektorCircle* circle, double radius);
+void vektor_circle_free(VektorCircle* circle);
+
+VektorRectangle* vektor_rectangle_new(void);
+void vektor_rectangle_set_end(VektorRectangle* rct, V2 point);
+void vektor_rectangle_set_start(VektorRectangle* rct, V2 point);
+void vektor_rectangle_free(VektorRectangle* rct);
+
+VektorShape vektor_shape_new(VektorPrimitive prim, VektorStyle style, int z_index);
+
 VektorBBox vektor_polyline_get_bbox(VektorPrimitive prim);
 VektorBBox vektor_polygon_get_bbox(VektorPrimitive prim);
 VektorBBox vektor_circle_get_bbox(VektorPrimitive prim);
@@ -86,9 +92,21 @@ VektorBBox vektor_rectangle_get_bbox(VektorPrimitive prim);
 
 VektorBBox vektor_primitive_get_bbox(VektorPrimitive prim);
 bool vektor_bbox_isinside(VektorBBox bbox, V2 point);
+VektorBBox vektor_bbox_fromcenter(V2 center, float dist);
 
-VektorShape vektor_shape_new(VektorPrimitive prim, VektorStyle style,
-                             int z_index);
+// shape handles
+void vektor_polyline_create_handles(VektorPolyline* polyline, V2** handleArr, size_t* count);
+void vektor_polygon_create_handles(VektorPolygon* polygon, V2** handleArr, size_t* count);
+void vektor_circle_create_handles(VektorCircle* circle, V2** handleArr, size_t* count);
+void vektor_rectangle_create_handles(VektorRectangle* rectangle, V2** handleArr, size_t* count);
+void vektor_shape_create_handles(VektorShape* shape);
+
+    /* reconstructs the shape based on handles alone */
+void vektor_polyline_handles_updated(VektorPolyline* polyline, V2** handles, size_t* count);
+void vektor_polygon_handles_updated(VektorPolygon* polygon, V2** handles, size_t* count);
+void vektor_circle_handles_updated(VektorCircle* circle, V2** handles, size_t* count);
+void vektor_rectangle_handles_updated(VektorRectangle* rectangle, V2** handles, size_t* count);
+void vektor_shape_handles_updated(VektorShape* shape);
 
 typedef struct {
     VektorShape* shapes;

src/core/vector.h

@@ -14,6 +14,8 @@ typedef struct {
     double z;
 } V3;
 
+static inline V2 vec2_fromfloat(const float f) { return (V2){f,f}; }
+
 static inline V3 vec2_vector(const V2 v) { return (V3){v.x, v.y, 0}; }
 
 static inline V3 vec2_point(const V2 v) { return (V3){v.x, v.y, 1}; }
@@ -46,16 +48,16 @@ static inline double vec2_cross(const V2 a, const V2 b) {
     return a.x * b.y - a.y * b.x;
 }
 
-static inline double vec2_norm(const V2 v) {
+static inline double vec2_length(const V2 v) {
     return sqrt(v.x * v.x + v.y * v.y);
 }
 
-static inline double vec2_quadrance(const V2 v) {
+static inline double vec2_lengthsq(const V2 v) {
     return (v.x * v.x + v.y * v.y);
 }
 
 static inline V2 vec2_normalize(const V2 v) {
-    return vec2_scale(v, 1 / vec2_norm(v));
+    return vec2_scale(v, 1 / vec2_length(v));
 }
 
 #endif // VECTOR_H_

src/main.c

@@ -1,19 +1,12 @@
 #include "glib.h"
 #include "gtk/gtk.h"
 #include "src/application/applicationstate.h"
-#include "src/core/primitives.h"
 #include "stdio.h"
 #include "stdlib.h"
 
 #include "./application/applicationstate.h"
-#include "./core/raster.h"
 #include "./ui/uicontroller.h"
-#include "./ui/vektorcanvas.h"
-#include "./util/color.h"
 
-static void on_map(GtkWidget* window, gpointer user_data) {
-    vektor_uictrl_map((VektorWidgetState*)user_data);
-}
 
 static int update_callback(gpointer data) {
     VektorAppState* appstate = (VektorAppState*)data;
@@ -30,9 +23,6 @@ static void activate(GtkApplication* app, gpointer user_data) {
     VektorAppState* app_state = (VektorAppState*)malloc(sizeof(VektorAppState));
     vektor_appstate_new(widget_state, app_state);
 
-    g_signal_connect(widget_state->window, "map", G_CALLBACK(on_map),
-                     widget_state);
-
     g_timeout_add(1, update_callback, app_state);
 
     gtk_window_present(widget_state->window);

src/ui/uicontroller.c

@@ -31,11 +31,6 @@ void vektor_uictrl_init(GtkApplication* app, VektorWidgetState* stateOut) {
     GtkIconTheme* theme =
         gtk_icon_theme_get_for_display(gdk_display_get_default());
 
-    /*if (gtk_icon_theme_has_icon(theme, "vektor-circle-symbolic"))
-        g_print("GTK sees it!\n");
-    else
-        g_print("Still invisible...\n");*/
-
     // populate state
     stateOut->window =
         GTK_WINDOW(gtk_builder_get_object(builder, "main_window"));
@@ -75,10 +70,9 @@ void vektor_uictrl_init(GtkApplication* app, VektorWidgetState* stateOut) {
     gtk_window_set_title(stateOut->window, "Vektor");
     gtk_window_set_default_size(stateOut->window, 800, 600);
 
+    // Set dimensions
+    gtk_paned_set_position(stateOut->workspacePaned, 800 * .7);
+    gtk_paned_set_position(stateOut->sidepanelPaned, 250);
+
     g_object_unref(builder);
 }
-
-void vektor_uictrl_map(VektorWidgetState* state) {
-    gtk_paned_set_position(state->workspacePaned, 800 * .7);
-    gtk_paned_set_position(state->sidepanelPaned, 250);
-}

src/ui/vektorcanvas.c

@@ -188,7 +188,7 @@ static gboolean render(GtkGLArea* a, GdkGLContext* ctx,
         glUniform1f(shader_selection_uTimeLoc, time);
         glUniform2f(shader_selection_uMinLoc, bbox.min.x, bbox.min.y);
         glUniform2f(shader_selection_uMaxLoc, bbox.max.x, bbox.max.y);
-        glUniform4f(shader_selection_uC1Loc, 0, 0, 0, 1);
+        glUniform4f(shader_selection_uC1Loc, 0, 0, 0, 0);
         glUniform4f(shader_selection_uC2Loc, 0.46, 0.46, 1, 1);
 
         glDrawArrays(GL_TRIANGLES, shape_vertex_count,